VulnerabilityAnalyzed
CVE-2026-46628
Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input.
MEDIUM 5.1EPSS 0.29%
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
Description
Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.
- CVSS 4.0
- 5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.29% probability · 22th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-116
- Affected
- symfony/twig
- Source
- security-advisories@github.com
References
- https://github.com/twigphp/Twig/commit/3190b9ae12614dfd58cc5d8f394bac4708b17913Patch
- https://github.com/twigphp/Twig/releases/tag/v3.26.0Release Notes
- https://github.com/twigphp/Twig/security/advisories/GHSA-4j38-f5cw-54h7Vendor Advisory
- https://github.com/twigphp/Twig/security/advisories/GHSA-4j38-f5cw-54h7Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.